June 2014
Beginner to intermediate
304 pages
7h 25m
English
Content preview from Spring MVC Beginner's GuideBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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The service layer
So far so good; we created a presentation layer that contains a controller, dispatcher servlet, view resolvers, and so on. Then, we created a domain layer that contains a single domain class, Product. Finally, we created the persistence layer, which contains a repository interface and an implementation to access our Product domain objects.
However, we are still missing one more concept called the service layer. Why do we need the service layer? We saw how a persistence layer deals with all of the logic related to data access (CRUD) and the presentation layer deals with all of the activities related to the web request and view; the domain layer contains classes to hold information that is retrieved from database records / the persistence ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.